I answered your question last May -
https://www.askmehelpdesk.com/bereav...go-574115.html - and really have nothing to add except there is no time frame, no schedule, no "set in stone" rule.
You apparently have been suffering with grief for 8 months and it doesn't seem to be lifting. Maybe it's time to talk to someone - a group, an individual, a clergyperson. I would be concerned about her robe beside your bed, a robe which contains her scent.
I was widowed, and my late husband was FAR too young to die. I know how grief is, how it can overtake your entire life.
And, yes, holidays are hard - they are still hard for me.
You appear - for some reason - to be hiding your feelings (and grief) from other people. Maybe that's why you aren't going forward.
I say it kindly - you need to talk to someone.